World Timezones

Riyadh to Busan Converter

Compare Busan to Riyadh instead
Riyadh6:39 amMon, Jun 8
RiyadhAST
Saudi Arabia · UTC+3
6:39 amMon, Jun 8
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
BusanKST
South Korea · UTC+9
12:39 pmMon, Jun 8
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a

Offset

The time difference between Riyadh and Busan is 6 hours.

6 hours

Riyadh (AST) is behind Busan (KST).

AST: UTC+3

KST: UTC+9

Neither Riyadh nor Busan is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–11 AM in Riyadh (3 PM–5 PM in Busan).

Both teams are in working hours during this window on weekdays.

Suggested time: 10:00 AM Riyadh (4:00 PM Busan).

Note: the working week in Saudi Arabia runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

South Korea

  • New Year's DayThu, Jan 1
  • Lunar New YearMon, Feb 16
  • Lunar New YearTue, Feb 17
  • Lunar New YearWed, Feb 18
  • Independence Movement DayMon, Mar 2
  • Labour DayFri, May 1
  • Children's DayTue, May 5
  • Buddha's BirthdayMon, May 25
  • Local Election DayWed, Jun 3
  • Memorial DaySat, Jun 6
  • Constitution DayFri, Jul 17
  • Liberation DayMon, Aug 17
  • ChuseokThu, Sep 24
  • ChuseokFri, Sep 25
  • ChuseokSat, Sep 26
  • National Foundation DayMon, Oct 5
  • Hangul DayFri, Oct 9
  • Christmas DayFri, Dec 25

About these zones

Riyadh uses Arabia Standard Time (AST). To call Saudi Arabia, dial +966.

Busan uses Korea Standard Time (KST). To call South Korea, dial +82.

Busan is approximately 4,850 miles northeast of Riyadh.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

RiyadhBusanDay
12:00 am6:00 amSame day
1:00 am7:00 amSame day
2:00 am8:00 amSame day
3:00 am9:00 amSame day
4:00 am10:00 amSame day
5:00 am11:00 amSame day
6:00 am12:00 pmSame day
7:00 am1:00 pmSame day
8:00 am2:00 pmSame day
9:00 am3:00 pmSame day
10:00 am4:00 pmSame day
11:00 am5:00 pmSame day
12:00 pm6:00 pmSame day
1:00 pm7:00 pmSame day
2:00 pm8:00 pmSame day
3:00 pm9:00 pmSame day
4:00 pm10:00 pmSame day
5:00 pm11:00 pmSame day
6:00 pm12:00 am+1 day
7:00 pm1:00 am+1 day
8:00 pm2:00 am+1 day
9:00 pm3:00 am+1 day
10:00 pm4:00 am+1 day
11:00 pm5:00 am+1 day

Daylight saving time

Neither Riyadh nor Busan observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Riyadh
Sunrise
5:04 AM
Sunset
6:42 PM
Day length
13h 37m
Busan
Sunrise
5:10 AM
Sunset
7:37 PM
Day length
14h 27m

Daylight overlap: 8h 33m — 5:04 AM–1:37 PM in Riyadh (11:04 AM–7:37 PM in Busan). Both locations are in daylight during this window.

Cities in these zones

Other cities in Arabia Standard Time

Other cities in Korea Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Airports in Korea Standard Time

  • GMP
  • ICN
  • PUS
  • TAE
  • CJJ
  • KWJ
  • MWX

Related conversions

Common conversions

What is 9:00 am Riyadh in Busan?
9:00 am Riyadh is 3:00 pm Busan.
What is 12:00 pm Riyadh in Busan?
12:00 pm Riyadh is 6:00 pm Busan.
What is 12:30 pm Riyadh in Busan?
12:30 pm Riyadh is 6:30 pm Busan.
What is 2:00 pm Riyadh in Busan?
2:00 pm Riyadh is 8:00 pm Busan.
What is 5:00 pm Riyadh in Busan?
5:00 pm Riyadh is 11:00 pm Busan.
What is 11:30 pm Riyadh in Busan?
11:30 pm Riyadh is 5:30 am Busan, the next day.